High-resolution spectroscopic observations of post-asymptotic giant branch candidates from the Edinburgh-Cape Survey

B. B. Lynn; F. P. Keenan; P. L. Dufton; W. R. J. Rolleston; J. V. Smoker; R. S. I. Ryans; D. Kilkenny; D. O'Donoghue; N. Hambly; H. T. McGillivray

doi:10.1111/j.1365-2966.2005.09496.x

High-resolution spectroscopic observations of post-asymptotic giant branch candidates from the Edinburgh-Cape Survey

B. B. Lynn, F. P. Keenan, P. L. Dufton, W. R. J. Rolleston, J. V. Smoker, R. S. I. Ryans, D. Kilkenny, D. O'Donoghue, N. Hambly, H. T. McGillivray

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

High spectral resolution (R~ 40000) and signal-to-noise optical spectra, obtained at the Very Large Telescope (VLT), are presented for three post-asymptotic giant branch (AGB) candidates selected from the Edinburgh-Cape (EC) Faint Blue Object Survey. The stellar atmospheric parameters and chemical compositions, derived using sophisticated non-local thermodynamic equilibrium calculations, reveal that EC 14102-1337 and EC 20068-7324 are both in an evolved post-horizontal branch (HB) evolutionary state. However, EC 11507-2253 is most likely a post-AGB star.

Original language	English
Pages (from-to)	911-917
Journal	Monthly Notices of the Royal Astronomical Society
Volume	363
Issue number	3
DOIs	https://doi.org/10.1111/j.1365-2966.2005.09496.x
Publication status	Published - 1 Nov 2005

Keywords

stars: abundances
stars: AGB and post-AGB
stars: atmospheres
stars: early-type
stars: evolution
Galaxy: halo

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10.1111/j.1365-2966.2005.09496.x

http://adsabs.harvard.edu/abs/2005MNRAS.363..911L

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Lynn, B. B., Keenan, F. P., Dufton, P. L., Rolleston, W. R. J., Smoker, J. V., Ryans, R. S. I., Kilkenny, D., O'Donoghue, D., Hambly, N., & McGillivray, H. T. (2005). High-resolution spectroscopic observations of post-asymptotic giant branch candidates from the Edinburgh-Cape Survey. Monthly Notices of the Royal Astronomical Society , 363(3), 911-917. https://doi.org/10.1111/j.1365-2966.2005.09496.x

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title = "High-resolution spectroscopic observations of post-asymptotic giant branch candidates from the Edinburgh-Cape Survey",

abstract = "High spectral resolution (R~ 40000) and signal-to-noise optical spectra, obtained at the Very Large Telescope (VLT), are presented for three post-asymptotic giant branch (AGB) candidates selected from the Edinburgh-Cape (EC) Faint Blue Object Survey. The stellar atmospheric parameters and chemical compositions, derived using sophisticated non-local thermodynamic equilibrium calculations, reveal that EC 14102-1337 and EC 20068-7324 are both in an evolved post-horizontal branch (HB) evolutionary state. However, EC 11507-2253 is most likely a post-AGB star.",

keywords = "stars: abundances, stars: AGB and post-AGB, stars: atmospheres, stars: early-type, stars: evolution, Galaxy: halo",

author = "Lynn, {B. B.} and Keenan, {F. P.} and Dufton, {P. L.} and Rolleston, {W. R. J.} and Smoker, {J. V.} and Ryans, {R. S. I.} and D. Kilkenny and D. O'Donoghue and N. Hambly and McGillivray, {H. T.}",

year = "2005",

month = nov,

day = "1",

doi = "10.1111/j.1365-2966.2005.09496.x",

language = "English",

volume = "363",

pages = "911--917",

journal = "Monthly Notices of the Royal Astronomical Society ",

issn = "0035-8711",

publisher = "Oxford University Press",

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}

Lynn, BB, Keenan, FP, Dufton, PL, Rolleston, WRJ, Smoker, JV, Ryans, RSI, Kilkenny, D, O'Donoghue, D, Hambly, N & McGillivray, HT 2005, 'High-resolution spectroscopic observations of post-asymptotic giant branch candidates from the Edinburgh-Cape Survey', Monthly Notices of the Royal Astronomical Society , vol. 363, no. 3, pp. 911-917. https://doi.org/10.1111/j.1365-2966.2005.09496.x

TY - JOUR

T1 - High-resolution spectroscopic observations of post-asymptotic giant branch candidates from the Edinburgh-Cape Survey

AU - Lynn, B. B.

AU - Keenan, F. P.

AU - Dufton, P. L.

AU - Rolleston, W. R. J.

AU - Smoker, J. V.

AU - Ryans, R. S. I.

AU - Kilkenny, D.

AU - O'Donoghue, D.

AU - Hambly, N.

AU - McGillivray, H. T.

PY - 2005/11/1

Y1 - 2005/11/1

N2 - High spectral resolution (R~ 40000) and signal-to-noise optical spectra, obtained at the Very Large Telescope (VLT), are presented for three post-asymptotic giant branch (AGB) candidates selected from the Edinburgh-Cape (EC) Faint Blue Object Survey. The stellar atmospheric parameters and chemical compositions, derived using sophisticated non-local thermodynamic equilibrium calculations, reveal that EC 14102-1337 and EC 20068-7324 are both in an evolved post-horizontal branch (HB) evolutionary state. However, EC 11507-2253 is most likely a post-AGB star.

AB - High spectral resolution (R~ 40000) and signal-to-noise optical spectra, obtained at the Very Large Telescope (VLT), are presented for three post-asymptotic giant branch (AGB) candidates selected from the Edinburgh-Cape (EC) Faint Blue Object Survey. The stellar atmospheric parameters and chemical compositions, derived using sophisticated non-local thermodynamic equilibrium calculations, reveal that EC 14102-1337 and EC 20068-7324 are both in an evolved post-horizontal branch (HB) evolutionary state. However, EC 11507-2253 is most likely a post-AGB star.

KW - stars: abundances

KW - stars: AGB and post-AGB

KW - stars: atmospheres

KW - stars: early-type

KW - stars: evolution

KW - Galaxy: halo

U2 - 10.1111/j.1365-2966.2005.09496.x

DO - 10.1111/j.1365-2966.2005.09496.x

M3 - Article

VL - 363

SP - 911

EP - 917

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 3

ER -

High-resolution spectroscopic observations of post-asymptotic giant branch candidates from the Edinburgh-Cape Survey

Abstract

Keywords

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